Influence of eugenol on the push-out bond strengths of fiber posts cemented with different types of resin luting agents

Abstract

This study evaluated the influence of eugenol on the push-out bond strengths of fiber posts cemented with different types of resin luting agents. Seventy-two extracted maxillary single-rooted canine teeth were randomly divided into two groups of 36 teeth. Group 1, the control group, was filled with gutta-percha only (i.e., did not receive eugenol), whereas group 2 was filled with a eugenol-containing sealer. All root canals were filled and each group was divided into three subgroups. The posts in each subgroup were cemented with the following materials: subgroup 1 with a 2-step self-etching adhesive system (Clearfil Liner Bond 2V + Panavia F); subgroup 2 with a 1-step self-etching adhesive (Panavia F); and subgroup 3 with a self-adhesive (Clearfil SA Cement). Dislodgement resistance was measured using a universal testing machine. All data were subjected to ANOVA using a factorial design and Tukey test (α = 0.05). The use of the eugenol-containing sealer significantly reduced the push-out bond strength of the fiber post (P < 0.05). The push-out bond strength of Panavia F was significantly higher than those of the other groups filled with the eugenol-containing sealer (P < 0.05). The Panavia F group was less susceptible to the inhibiting effect of eugenol than were the other evaluated groups when the fiber post was cemented in the canals filled with the eugenol-containing sealer.

Influence of Eugenol-based Sealers on Push-out Bond Strength of Fiber Post Luted with Resin Cement: Systematic Review and Meta-analysis

“…In all studies, the primary outcome assessed was the immediate push-out bond strength, expressed in MPa, of fiber posts cemented to root canals after endodontic treatment. Five studies presented fracture analysis (24,28,29,31,32). The predominant mode of failure was the adhesive between the cement and dentin.…”

“…After the full-text reading of 10 studies, 1 was excluded (11) because of thermocycling samples before the bond strength test. At the final screening, 9 studies (22,24,(28)(29)(30)(31)(32)(33)(34) were included in the meta-analysis (Fig. 1).…”

Flexural Properties and Elastic Modulus of Different Esthetic Restorative Materials: Evaluation after Exposure to Acidic Drink

“…Many reports have been presented about fiber-reinforced composites used as endodontic posts [26], nets [27], and long fibers [21]. These materials have been proposed for endodontic [28], prosthodontic [29], and splinting purposes [30]. However, only few reports evaluated flexural strength of nonfiber reinforced dental materials.…”

Effects of Internal Bleaching on the Adhesion of Glass-Fiber Posts

“…Some studies have found that self-adhesive resin cement has greater push-out bond strengths than other types of resin cements [ 15 , 19 , 13 ]. Other investigations have reported greater bond strength for conventional resin cements [ 17 , 18 , 30 ]. One possible explanation for these results is the different protocols and variables adopted in other investigations.…”